style: fix lint

hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/actor/Actor.kt

@@ -154,9 +154,7 @@ class Actor(
         return id == other.id
     }
 
-    override fun hashCode(): Int {
+    override fun hashCode(): Int = id.hashCode()
-        return id.hashCode()
-    }
 
     override fun toString(): String {
         return "Actor(" +

hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/actor/ActorDescription.kt

@@ -28,9 +28,7 @@ class ActorDescription(description: String) {
         return description == other.description
     }
 
-    override fun hashCode(): Int {
+    override fun hashCode(): Int = description.hashCode()
-        return description.hashCode()
-    }
 
     companion object {
         const val LENGTH = 10000

hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/actor/ActorScreenName.kt

@@ -29,9 +29,7 @@ class ActorScreenName(screenName: String) {
         return screenName == other.screenName
     }
 
-    override fun hashCode(): Int {
+    override fun hashCode(): Int = screenName.hashCode()
-        return screenName.hashCode()
-    }
 
     companion object {
         const val LENGTH = 300

hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/timeline/Timeline.kt

@@ -35,9 +35,7 @@ class Timeline(
         return id == other.id
     }
 
-    override fun hashCode(): Int {
+    override fun hashCode(): Int = id.hashCode()
-        return id.hashCode()
-    }
 
     companion object {
         fun create(